Bosch D296 Installation Instructions Manual page 9

Long-range Beam Smoke Detectors
Figure 3.2: Smoke Densty and Obscuration Graph
Determine the total obscuration needed for an alarm and select the sensitivity setting needed
according to the following table.
Total Obscuration at Alarm
20%
30%
40%
50%
60%
70%
Bosch Security Systems, Inc.
1 Smoke density
2 UL minimum sensitivity
Installation Instructions
3 UL maximum sensitiivity
4 Distance between transmitter and
receiver
Sensitivity Switch Setting
2
0 or 3
4
5
1 or 6
7
Notices | en 9
2014.01 | 06 | F.01U.068.899